Which of the following descriptions of routing policy characteristics is incorrect?

Question

Options

• ACan save system resources by controlling the size of the router's routing table.
• BBy modifying routing attributes, network data traffic can be reasonably planned to improve network performance.
• CYou can flexibly control which routes are advertised or which network traffic passes through.
• DAble to improve network security by controlling the reception, publishing and introduction of routes

• A
  2% (1)
• B
  7% (3)
• C
  82% (36)
• D
  9% (4)

Explanation

Option C is incorrect because routing policies operate on routing information, not on actual network traffic. They control which routes are accepted, rejected, or advertised between routing protocols, but they do not directly determine which data packets are permitted to pass through the network. That function belongs to access control lists (ACLs) or traffic policies, which work at the packet-forwarding level.

Options A, B, and D are all accurate descriptions. Routing policies can filter routes to keep the routing table smaller (A), modify attributes like MED or local preference to steer traffic along preferred paths (B), and restrict which routes are received, redistributed, or published to improve security (D).

Memory tip: Think of routing policies as controlling the MAP, not the CARS. They shape which routes exist and how they propagate, but they do not inspect or block the actual data traffic flowing through the network.

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